I've installed coreduotemp and it is reporting that my cpu is running at 1.83ghz, although I have a mbp 2.2ghz. I though it was because I had my energy saver set at normal, but even set at "Better Performance", it's still running at 1.83. Not only that, sometimes I see the clock go down to 1.33 for several seconds (sometimes even minutes) and then it goes back to 1.83. In system profiler, the cpu is reported as a core 2 duo at 2.2ghz. All of this is happening while my mbp is supplied with power (MagSafe Power Adapter) Now, it's to know if coreduotemp really is reporting the correct cpu clock.